Abumblebee flies with a ground speed of 15.0 m/s . calculate its speed in km/h.

Explanation:

This is a problem of conversion of units.

First of all you need to take the quantity the problem gives you and write it down with the units:

Then you need to find the conversion factor for the units you need to convert:

In this case you need to convert from meters (m) to kilometers (km) and from seconds (s) to hours (h), so you have the following conversion factors:

- To convert from meters (m) to kilometers (km):

-To convert from seconds (s) to hours (h):

Then you should put the conversion factors in the same expression, so:

Finally you multiply the numerators and the denominators and divide the results:

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.